A "null" designator won't have a valid location. Try to approximate this
location as best we can in that situation.
Closes 61118
Closes 46132
Reviewed By: shafik
Differential Revision: https://reviews.llvm.org/D147673
hadError = true;
} else {
// Typo correction didn't find anything.
- SemaRef.Diag(D->getFieldLoc(), diag::err_field_designator_unknown)
- << FieldName << CurrentObjectType;
+ SourceLocation Loc = D->getFieldLoc();
+
+ // The loc can be invalid with a "null" designator (i.e. an anonymous
+ // union/struct). Do our best to approximate the location.
+ if (Loc.isInvalid())
+ Loc = IList->getBeginLoc();
+
+ SemaRef.Diag(Loc, diag::err_field_designator_unknown)
+ << FieldName << CurrentObjectType << DIE->getSourceRange();
++Index;
return true;
}
--- /dev/null
+// RUN: %clang_cc1 -std=c++2b -fsyntax-only -verify %s
+
+namespace PR61118 {
+
+union S {
+ struct {
+ int a;
+ };
+};
+
+void f(int x, auto) {
+ const S result { // expected-error {{field designator (null) does not refer to any field in type 'const S'}}
+ .a = x
+ };
+}
+
+void g(void) {
+ f(0, 0); // expected-note {{in instantiation of function template specialization 'PR61118::f<int>' requested here}}
+}
+
+} // end namespace PR61118